Rotary combined gradient sand collector

Abstract

The invention relates to the technical field of sand and dust flux detection, and discloses a rotary combined gradient sand collector which comprises an air inlet, a sand collecting bin is fixedly connected to the outer wall of the air inlet, a connecting pipe is fixedly communicated with the interior of the air inlet, the other end of the connecting pipe is fixedly communicated with the interior of the sand collecting bin, and a flow guide mechanism is arranged in the air inlet; the flow guide mechanism comprises a guide plate; the center rod is rotationally connected with the inner wall of the air inlet through a bearing, the outer wall of the center rod is fixedly connected with a flow guide fan, the outer wall of the air inlet is fixedly connected with a supporting plate, a flow limiting assembly is arranged on the outer wall of the flow guide fan, the flow limiting assembly comprises a baffle, and the inner wall of the baffle is hinged to the outer wall of the supporting plate through a hinge block. Sand dust is isolated through the flow limiting assembly, flow limiting is conducted on air, and the situation that due to the fact that the wind speed is too high, vortex is generated in the sand collecting bin, air backflow is caused, the collected sand dust is brought out, and the detection result is affected is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sand flux detection, in particular to a rotating combined gradient sand collector. BACKGROUND

[0002] Under the action of strong wind, the sand particles are carried by the wind-sand flow to jump and move, which is an important reason for various wind-sand hazards.

[0003] The patent application with the application number CN201910479142.3 discloses a rotating combined gradient sand collector for collecting sand dust, facilitating calculation of sand flux, and the fixed protection bracket is provided with a rhombus-shaped, 45°-angled, upper-lower stacked and inclined combined sand collecting box.

[0004] However, when the rotating combined gradient sand collector is used in a high wind speed environment, the filtering screen will block the airflow, causing vortexes in the sand collector and causing the sand particles filtered in the sand collector to be rolled out. The sand collector is usually adjusted horizontally according to the wind direction and collects sand at a fixed angle of elevation. However, most wind directions are not parallel to the ground, which affects the sand capture rate of the sand collector and causes the sand collector to be unable to accurately detect the sand flux data. SUMMARY

[0005] The present application aims to provide a rotating combined gradient sand collector to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a rotating combined gradient sand collector, comprising an air inlet, wherein the air inlet is fixedly connected with a sand collecting chamber on the outer wall, the air inlet is fixedly and continuously connected with a connecting pipe inside, the other end of the connecting pipe is fixedly and continuously connected with the inside of the sand collecting chamber, and a flow guide mechanism is arranged inside the air inlet.

[0007] The flow guide mechanism comprises:

[0008] A center rod is rotatably connected with the inner wall of the air inlet through a bearing, a flow guide fan is fixedly connected with the outer wall of the center rod, a support plate is fixedly connected with the outer wall of the air inlet, a flow limiting assembly is arranged on the outer wall of the flow guide mechanism, the flow limiting assembly comprises a baffle, the inner wall of the baffle is hingedly connected with the outer wall of the support plate through a hinge block, a flow limiting hole is formed in the inner wall of the baffle, and the baffle is used for isolating sand dust.

[0009] According to the technical scheme, the outer wall of the sand collecting bin is fixedly connected with the sand filtering bin, the outer wall of the sand collecting bin is spherically connected with a supporting sleeve, the bottom of the supporting sleeve is rotationally connected with a supporting rod one through a bearing, the bottom of the supporting rod one is fixedly connected with a base, the outer wall of the sand filtering bin is fixedly connected with a wind direction rod, the inner wall of the wind direction rod is coveredly connected with a counterweight one, the inner wall of the supporting sleeve is provided with a limiting groove, the outer wall of the sand collecting bin is fixedly connected with a guide block, the outer wall of the central rod is provided with a sliding groove, the top of the supporting sleeve is fixedly connected with a supporting rod two, and the wind direction rod drives the sand collecting bin to adjust in the inner wall of the supporting sleeve through a wind direction belt.

[0010] According to the technical scheme, the outer wall of the baffle is hingedly connected with a telescopic rod through a hinge block, the other end of the telescopic rod is fixedly connected with the outer wall of the hydraulic damping one output rod, the outer wall of the hydraulic damping one is fixedly connected with the inner wall of the central rod, the outer wall of the output end of the hydraulic damping one is fixedly connected with a guide rod, the outer wall of the guide rod is slidingly connected with a counterweight two, the outer wall of the counterweight two is slidingly connected with the groove wall of the sliding groove, the outer wall of the counterweight two is hingedly connected with a scraper one through a hinge block, and the outer wall of the scraper one is in contact with the inner wall of the sand collecting bin, so as to clean the connecting port of the sand collecting bin and the connecting pipe.

[0011] According to the technical scheme, the outer wall of the central rod is provided with a cleaning mechanism, the cleaning mechanism comprises a scraper two, the inner wall of the scraper two is fixedly connected with the outer wall of the central rod, the inner wall of the scraper two is fixedly connected with a hydraulic damping two, the inner wall of the hydraulic damping two is rotationally connected with a cleaning wheel through a rotating shaft, the outer wall of the cleaning wheel is slidingly connected with the inner wall of the scraper two, the inner wall of the scraper two is provided with a residue discharging groove, and the outer wall of the cleaning wheel is in contact with the inner wall of the sand filtering bin, so as to clean the inner wall of the sand filtering bin.

[0012] According to the technical scheme, the guide fan is used for guiding air, the connecting pipe is used for shunting air, and the inner wall of the air inlet is in the shape of a horn, so as to guide air.

[0013] According to the technical scheme, the outer wall of the sand collecting bin is spherical, so as to adjust in multiple directions in the supporting sleeve, the outer wall of the guide block slides along the groove wall of the limiting groove, the limiting groove limits the sand collecting bin through the guide block, and the sliding groove is a groove of the inclined surface of the outer wall of the central rod, so as to guide the counterweight two.

[0014] According to the technical scheme, the counterweight two has elastic reset telescopic properties, so as to support the scraper one, and the counterweight two slides along the groove wall of the sliding groove through centrifugal force.

[0015] According to the technical scheme, the outer wall of the scraper two is in contact with the inner wall of the sand filtering bin, so as to scrape off the attachments on the inner wall of the sand filtering bin, and the residue discharging groove is in communication with the inside of the scraper two, so as to guide and discharge the attachments cleaned by the cleaning wheel.

[0016] Compared with the prior art, the present application has the beneficial effects that:

[0017] 1. The rotating combined gradient sand collector separates sand and dust from air through the flow limiting assembly and limits the flow of air, preventing the generation of vortex flow in the sand collecting chamber due to excessive wind speed, causing the collected sand and dust to be taken out by air backflow, affecting the detection results.

[0018] 2. The rotating combined gradient sand collector guides and divides the air carrying sand and dust through the flow guiding mechanism, reducing the air flow speed and preventing the generation of vortex flow in the sand collecting chamber, causing the collected sand and dust to be taken out by air backflow, affecting the detection results.

[0019] 3. The rotating combined gradient sand collector adjusts the air inlet in multiple directions through the cooperation of the support sleeve and the sand collecting chamber, so that the air inlet always maintains parallel direction with the wind direction to collect sand and dust, making the sand collector more stable in capturing sand and dust.

[0020] 4. The rotating combined gradient sand collector cleans the inner wall of the sand filtering chamber through the cleaning mechanism, preventing sand and dust from adhering to the inner wall of the sand filtering chamber, causing the sand filtering chamber to be blocked, affecting air flow, and reducing the sand and dust collection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Structure diagram of the present application Figure One ;

[0022] Figure 2 Structure diagram of the present application Figure Two ;

[0023] Figure 3 Cross-sectional view of the present application Figure One ;

[0024] Figure 4 Cross-sectional view of the present application Figure Two ;

[0025] Figure 5 Structure diagram of the flow guiding mechanism of the present application

[0026] Figure 6 Cross-sectional view of the flow guiding mechanism of the present application

[0027] Figure 7 Structure diagram of the flow limiting assembly of the present application Figure One ;

[0028] Figure 8 Structure diagram of the flow limiting assembly of the present application Figure Two ;

[0029] Figure 9 Cross-sectional view of the cleaning mechanism of the present application

[0030] Figure 10 Structure diagram of the cleaning mechanism of the application.

[0031] In the figure: 1, air inlet; 101, support sleeve; 102, support rod one; 103, base; 104, connecting pipe; 105, support rod two; 106, sand collecting bin; 107, sand filtering bin; 108, wind direction rod; 109, counterweight one; 110, limiting groove; 111, guide block; 2, flow guiding mechanism; 201, center rod; 202, flow guiding fan; 203, sliding groove; 204, support plate; 3, flow limiting assembly; 301, baffle; 302, telescopic rod; 303, flow limiting hole; 304, hydraulic damper one; 305, guide rod; 306, counterweight two; 307, scraper one; 4, cleaning mechanism; 401, scraper two; 402, hydraulic damper two; 403, cleaning wheel; 404, slag discharging groove. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0033] Embodiment one, please refer to Figures 1-8 The application provides a technical solution: a rotary combined gradient sand collecting instrument, comprising an air inlet 1, the air inlet 1 is fixedly connected with a sand collecting bin 106 outside the wall, the air inlet 1 is fixedly communicated with a connecting pipe 104 inside, the other end of the connecting pipe 104 is fixedly communicated with the inside of the sand collecting bin 106, and the air inlet 1 is provided with a flow guiding mechanism 2 inside;

[0034] When the rotary combined gradient sand collecting instrument is in a large wind speed, the filtering gauze has a blocking effect on the wind, so that after the airflow enters the sand collecting instrument, vortex is formed, the sand particles filtered in the sand collecting instrument are rolled out, and the sand collecting instrument is usually adjusted horizontally according to the wind direction and collects sand at a fixed angle of elevation. However, most of the wind directions are not parallel to the ground, so the support sleeve 101 and the sand collecting bin 106 are arranged to drive the air inlet 1 to be adjusted in multiple directions, so that the air inlet 1 always maintains a parallel direction with the wind direction to collect sand and dust, the flow guiding mechanism 2 is arranged to guide and distribute the air carrying sand and dust, the airflow speed is reduced, the vortex is prevented from being generated in the sand collecting bin 106, the flow limiting assembly 3 is arranged to isolate the sand and dust and limit the airflow, and the vortex is prevented from being generated in the sand collecting bin 106 due to the too large wind speed, the backflow of the airflow carries out the collected sand and dust, and the detection result is affected;

[0035] The flow guiding mechanism 2 comprises;

[0036] The center rod 201 is rotatably connected with the inner wall of the air inlet 1 through a bearing, and the outer wall of the center rod 201 is fixedly connected with a flow guide fan 202. The outer wall of the flow guide mechanism 2 is provided with a flow limiting assembly 3. The flow limiting assembly 3 comprises a baffle 301, the inner wall of the baffle 301 is hingedly connected with the outer wall of the support plate 204 through a hinge block, a flow limiting hole 303 is formed in the inner wall of the baffle 301, and the baffle 301 is used for isolating sand and dust. When the rotary combined gradient sand collecting instrument is put into use, the sand collecting instrument is placed at a suitable position to collect sand and dust carried by the wind. In the collecting process, the wind direction rod 108 flows through the sand filtering bin 107 according to the wind direction to drive the sand collecting bin 106 to adjust the direction. The sand collecting bin 106 is limited by the limiting groove 110 to limit the guide block 111, so that the guide block 111 drives the support sleeve 101 to rotate on the top of the support rod 102 to adjust the horizontal direction. When the wind direction is inclined to the ground, the wind direction rod 108 drives the sand collecting bin 106 to adjust the direction. The sand collecting bin 106 rotates on the inner wall of the support sleeve 101 as the fulcrum through the guide block 111 to adjust the direction, so that the air inlet 1 is always parallel to the wind direction. At the same time, the counterweight block 109 swings on the inner wall of the wind direction rod 108 by gravity to keep the vertical state with the ground, and prevent the sand collecting bin 106 from rotating on the inner wall of the support sleeve 101. When the air inlet 1 is adjusted to be parallel to the wind direction, the air enters the inside of the air inlet 1 to drive the flow guide fan 202 to rotate on the inner wall of the air inlet 1. The air carrying sand and dust is divided through the connecting pipe 104 and enters the sand collecting bin 106, and is filtered through the sand filtering bin 107, so that the sand and dust are collected in the sand collecting bin 106. At the same time, the flow guide fan 202 drives the center rod 201 to rotate on the inner wall of the air inlet 1. When the wind speed is large, the flow guide fan 202 drives the center rod 201 to rotate on the inner wall of the air inlet 1, drives the baffle 301 to rotate on the inner wall of the sand collecting bin 106 through the support plate 204, and drives the counterweight block 306 to rotate through the center rod 201. The counterweight block 306 generates centrifugal force by rotating on the center rod 201, slides in the inclined sliding groove 203, supports the scraper 307, contacts the inner wall of the sand collecting bin 106, cleans the connecting end of the connecting pipe 104 and the sand collecting bin 106, drives the guide rod 305 to extrude the hydraulic damping 304, drives the telescopic rod 302 on the inner wall of the center rod 201 through the output rod of the hydraulic damping 304, drives the baffle 301 to swing away from the inner wall of the sand collecting bin 106 as the fulcrum of the hinge on the outer wall of the support plate 204, drives the telescopic rod 302 to retract passively through the hydraulic damping 304 in the swinging process of the baffle 301, drives the baffle 301 to swing, compensates the displacement of the baffle 301, reduces the isolation of the baffle 301 to the air and the inside of the sand collecting bin 106, disturbs the air, limits the air through the flow limiting hole 303, prevents vortex from being generated in the sand collecting bin 106 under strong wind, and prevents the air carrying sand and dust from flowing back.The dust is taken out from the sand collecting bin 106, affecting the detection result. When the wind speed is low, the guide fan 202 rotates to guide the air, and is shunted through the connecting pipe 104. The hydraulic damping one 304 supports the guide rod 305, so that the guide rod 305 drives the counterweight block two 306 to slide in the sliding groove 203 towards the guide fan 202 for resetting. At the same time, the hydraulic damping one 304 supports the telescopic rod 302, driving the baffle 301 to reset, intercepting the dust on the inner wall of the sand collecting bin 106. The air passes through the flow limiting hole 303, and the dust enters the sand collecting bin 106 after settling for collection, isolating the dust in the sand collecting bin 106.

[0037] The sand collecting bin 106 is fixedly connected with the sand filtering bin 107 outside the wall. The support sleeve 101 is spherically connected to the outer wall of the sand collecting bin 106. The support rod one 102 is rotatably connected to the bottom of the support sleeve 101 through a bearing. The base 103 is fixedly connected to the bottom of the support rod one 102. The wind direction rod 108 is fixedly connected to the outer wall of the sand filtering bin 107. The counterweight block one 109 is coveringly connected to the inner wall of the wind direction rod 108. The limiting groove 110 is formed in the inner wall of the support sleeve 101. The guide block 111 is fixedly connected to the outer wall of the sand collecting bin 106. The sliding groove 203 is formed in the outer wall of the center rod 201. The support rod two 105 is fixedly connected to the top of the support sleeve 101. The wind direction rod 108 drives the sand collecting bin 106 to adjust on the inner wall of the support sleeve 101. In the collection process of the dust, the wind direction rod 108 drives the sand collecting bin 106 to adjust the direction according to the wind direction flowing through the sand filtering bin 107. The sand collecting bin 106 limits the guide block 111 through the limiting groove 110, so that the guide block 111 drives the support sleeve 101 to rotate on the top of the support rod one 102 for horizontal direction adjustment. When the wind direction flows in an inclined direction with the ground, the wind direction rod 108 drives the sand collecting bin 106 to adjust the direction. The sand collecting bin 106 rotates on the inner wall of the support sleeve 101 as a fulcrum through the guide block 111 for direction adjustment, so that the air inlet 1 always keeps parallel with the wind direction. At the same time, the counterweight block one 109 swings on the inner wall of the wind direction rod 108 by gravity, keeping perpendicular to the ground, preventing the sand collecting bin 106 from rotating on the inner wall of the support sleeve 101. When the air inlet 1 is adjusted to keep parallel with the wind direction, the air enters the air inlet 1, driving the guide fan 202 to rotate on the inner wall of the air inlet 1. The air carrying the dust is shunted through the connecting pipe 104 and enters the sand collecting bin 106, and is filtered through the sand filtering bin 107, so that the dust is collected in the sand collecting bin 106.

[0038] The outer wall of the baffle 301 is hingedly connected with a telescopic rod 302 through a hinge block, the other end of the telescopic rod 302 is fixedly connected with the outer wall of the output rod of a hydraulic damper I 304, the outer wall of the hydraulic damper I 304 is fixedly connected with the inner wall of the central rod 201, the outer wall of the output end of the hydraulic damper I 304 is fixedly connected with a guide rod 305, the outer wall of the guide rod 305 is slidingly connected with a counterweight II 306, the outer wall of the counterweight II 306 is slidingly connected with the groove wall of the sliding groove 203, the outer wall of the counterweight II 306 is hingedly connected with a scraper I 307 through a hinge block, the outer wall of the scraper I 307 is in contact with the inner wall of the sand collecting bin 106, and the scraper I 307 cleans the connecting port of the connecting pipe 104 and the sand collecting bin 106; when the wind speed is relatively large, the guide fan 202 drives the central rod 201 to rotate in the inner wall of the air inlet 1, drives the baffle 301 to rotate in the inner wall of the sand collecting bin 106 through the supporting plate 204, and simultaneously drives the counterweight II 306 to rotate through the central rod 201; the counterweight II 306 generates centrifugal force through the rotation of the central rod 201 and slides along the inclined sliding groove 203; the counterweight II 306 supports the scraper I 307, is in contact with the inner wall of the sand collecting bin 106, cleans the connecting port of the connecting pipe 104 and the sand collecting bin 106, simultaneously drives the guide rod 305 to extrude the hydraulic damper I 304, and the outer wall of the output rod of the hydraulic damper I 304 drives the telescopic rod 302 to slide in the inner wall of the central rod 201, so that the baffle 301 swings away from the inner wall of the sand collecting bin 106 with the hinge joint of the outer wall of the supporting plate 204 as a fulcrum; in the swinging process of the baffle 301, the telescopic rod 302 is passively retracted by the hydraulic damper I 304, drives the baffle 301 to swing, compensates the displacement generated by the swinging of the baffle 301, reduces the isolation of the baffle 301 to the air and the inside of the sand collecting bin 106, disturbs the air, simultaneously limits the flow of the air through the flow limiting hole 303, prevents vortexes from being generated in the inside of the sand collecting bin 106 under strong wind, causes the air to carry back the sand and dust, takes out the sand and dust from the sand collecting bin 106, and affects the detection result; when the wind speed is relatively low, the guide fan 202 rotates to guide the air, divides the flow of the air through the connecting pipe 104, supports the guide rod 305 through the hydraulic damper I 304, limits the counterweight II 306 through the guide rod 305, supports the baffle 301 through the telescopic rod 302, intercepts the sand and dust in the inner wall of the sand collecting bin 106, and the air passes through the flow limiting hole 303; after the sand and dust are settled, the sand and dust enter the sand collecting bin 106 and are collected, and the sand and dust are isolated in the sand collecting bin 106;

[0039] The guide fan 202 is used for guiding the air, the connecting pipe 104 is used for dividing the flow of the air, the inner wall of the air inlet 1 is in a trumpet shape and is used for guiding the air; when the air carrying sand and dust enters the air inlet 1, the air is guided through the trumpet-shaped inner wall of the air inlet 1, the capturing rate of the air inlet 1 to the sand and dust is increased, the guide fan 202 is driven to rotate in the inner wall of the air inlet 1, the air is driven to enter the connecting pipe 104 to divide the flow of the air, and the flow rate of the air entering the inside of the sand collecting bin 106 is reduced.

[0040] The outer wall of the sand collecting bin 106 is spherical, used for multidirectional adjustment inside the supporting sleeve 101, the outer wall of the guide block 111 slides along the groove wall of the limiting groove 110, the limiting groove 110 limits the sand collecting bin 106 through the guide block 111, the sliding groove 203 is a groove of the inclined surface of the outer wall of the center rod 201, used for guiding the counterweight block two 306, in the process of the wind direction rod 108 driving the sand collecting bin 106 to adjust the direction, the sand collecting bin 106 limits the guide block 111 through the limiting groove 110, so that the guide block 111 drives the supporting sleeve 101 to rotate on the top of the supporting rod one 102, and the horizontal direction is adjusted, when the wind direction flows in an inclined direction with the ground, the wind direction rod 108 drives the sand collecting bin 106 to adjust the direction, the sand collecting bin 106 rotates on the inner wall of the supporting sleeve 101 through the guide block 111 as a fulcrum, and the direction is adjusted, so that the air inlet 1 is always parallel to the wind direction.

[0041] The counterweight block two 306 has elastic reset extension, used for supporting the scraper one 307, the counterweight block two 306 slides along the groove wall of the sliding groove 203 through centrifugal force, the counterweight block two 306 supports the scraper one 307, so that the scraper one 307 adjusts through the hinge with the counterweight block two 306 as a fulcrum, so that the scraper one 307 is attached to the inner wall of the sand collecting bin 106 to clean the connecting pipe 104 and the connecting part of the sand collecting bin 106.

[0042] Example two, based on example one, please refer to Figures 9-10 The present application provides a technical scheme: the outer wall of the center rod 201 is provided with a cleaning mechanism 4.

[0043] After the sand filtering bin 107 filters the air, sand dust is easy to adhere to the inner wall of the sand filtering bin 107, causing blockage, resulting in poor flow, so the cleaning mechanism 4 is arranged to clean the inner wall of the sand filtering bin 107, prevent sand dust from adhering to the inner wall of the sand filtering bin 107, causing the sand filtering bin 107 to be blocked, affecting the air flow, resulting in low sand dust collection efficiency.

[0044] The cleaning mechanism 4 comprises a second scraper 401, the inner wall of the second scraper 401 is fixedly connected with the outer wall of the central rod 201, the inner wall of the second scraper 401 is fixedly connected with a second hydraulic damper 402, the inner wall of the second hydraulic damper 402 is rotatably connected with a cleaning wheel 403 through a rotating shaft, the outer wall of the cleaning wheel 403 is slidably connected with the inner wall of the second scraper 401, the inner wall of the second scraper 401 is provided with a slag discharge groove 404, the outer wall of the cleaning wheel 403 is in contact with the inner wall of the sand filtering bin 107, and the inner wall of the sand filtering bin 107 is cleaned, the second scraper 401 is driven to rotate in the sand filtering bin 107 by the central rod 201, the second scraper 401 scrapes off the sand dust attached in the sand filtering bin 107, the second hydraulic damper 402 supports the cleaning wheel 403, drives the cleaning wheel 403 to slide on the inner wall of the second scraper 401, and the cleaning wheel 403 is in contact with the inner wall of the sand filtering bin 107, the cleaning wheel 403 is driven to roll along the inner wall of the sand filtering bin 107 through the friction between the cleaning wheel 403 and the inner wall of the sand filtering bin 107, the sand dust attached to the inner wall of the sand filtering bin 107 is cleaned, and the cleaned sand dust enters the second scraper 401, is guided through the slag discharge groove 404, and is discharged from the inner wall of the second scraper 401 and enters the sand collecting bin 106, so that the sand dust is collected.

[0045] The outer wall of the second scraper 401 is in contact with the inner wall of the sand filtering bin 107, and the attached matters on the inner wall of the sand filtering bin 107 are scraped off, the slag discharge groove 404 is in communication with the inside of the second scraper 401, and the attached matters cleaned by the cleaning wheel 403 are guided and discharged, the second scraper 401 is driven to rotate in the sand filtering bin 107 by the central rod 201, the second scraper 401 scrapes off the sand dust attached in the sand filtering bin 107, the sand dust cleaned by the cleaning wheel 403 enters the second scraper 401, is guided through the slag discharge groove 404, is discharged from the inner wall of the second scraper 401, and enters the sand collecting bin 106, so that the sand dust is collected.

[0046] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotary combined gradient sand trap, comprising an air inlet (1), wherein an outer wall of the air inlet (1) is fixedly connected with a sand collection bin (106), characterized in that, The air inlet (1) is fixedly connected with a connecting pipe (104) inside, another end of the connecting pipe (104) is fixedly connected with a sand collecting bin (106) inside, and the air inlet (1) is provided with a flow guide mechanism (2) inside; The flow guide mechanism (2) comprises; A center rod (201) is rotatably connected with the inner wall of the air inlet (1) through a bearing, the outer wall of the center rod (201) is fixedly connected with a flow guide fan (202), the outer wall of the air inlet (1) is fixedly connected with a support plate (204), the outer wall of the flow guide mechanism (2) is provided with a flow limiting assembly (3), the flow limiting assembly (3) comprises a baffle (301), the inner wall of the baffle (301) is hingedly connected with the outer wall of the support plate (204) through a hinge block, the inner wall of the baffle (301) is provided with a flow limiting hole (303), and the baffle (301) is used for isolating sand and dust.

2. A rotating combined gradient sand trap according to claim 1, characterized in that: The outer wall of the sand collecting bin (106) is fixedly connected with a sand filtering bin (107), the outer wall of the sand collecting bin (106) is spherically connected with a support sleeve (101), the bottom of the support sleeve (101) is rotatably connected with a support rod one (102) through a bearing, the bottom of the support rod one (102) is fixedly connected with a base (103), the outer wall of the sand filtering bin (107) is fixedly connected with a wind direction rod (108), the inner wall of the wind direction rod (108) is claddedly connected with a counterweight block one (109), the inner wall of the support sleeve (101) is provided with a limiting groove (110), the outer wall of the sand collecting bin (106) is fixedly connected with a guide block (111), the outer wall of the center rod (201) is provided with a sliding groove (203), the top of the support sleeve (101) is fixedly connected with a support rod two (105), and the wind direction rod (108) drives the sand collecting bin (106) to adjust in the inner wall of the support sleeve (101) through the wind direction.

3. A rotating combined gradient sand trap according to claim 1, characterized in that: The outer wall of the baffle (301) is hingedly connected with a telescopic rod (302) through a hinge block, another end of the telescopic rod (302) is fixedly connected with the outer wall of an output rod of a hydraulic damping one (304), the outer wall of the hydraulic damping one (304) is fixedly connected with the inner wall of the center rod (201), the outer wall of the output end of the hydraulic damping one (304) is fixedly connected with a guide rod (305), the outer wall of the guide rod (305) is slidingly connected with a counterweight block two (306), the outer wall of the counterweight block two (306) is slidingly connected with the groove wall of the sliding groove (203), the outer wall of the counterweight block two (306) is hingedly connected with a scraper one (307) through a hinge block, and the outer wall of the scraper one (307) is in contact with the inner wall of the sand collecting bin (106) to clean the connecting port of the sand collecting bin (106) and the connecting pipe (104).

4. A rotating combined gradient sand trap according to claim 1, characterized in that: The outer wall of the center rod (201) is provided with a cleaning mechanism (4), the cleaning mechanism (4) comprises a scraper two (401), the inner wall of the scraper two (401) is fixedly connected with the outer wall of the center rod (201), the inner wall of the scraper two (401) is fixedly connected with a hydraulic damping two (402), the inner wall of the hydraulic damping two (402) is rotatably connected with a cleaning wheel (403) through a rotating shaft, the outer wall of the cleaning wheel (403) is slidably connected with the inner wall of the scraper two (401), the inner wall of the scraper two (401) is provided with a deslagging groove (404), the outer wall of the cleaning wheel (403) is in contact with the inner wall of the sand filtering bin (107), and the inner wall of the sand filtering bin (107) is cleaned.

5. A rotating combined gradient sand trap according to claim 1, characterized in that: The guide fan (202) is used for guiding air flow, the connecting pipe (104) is used for air shunting, and the inner wall of the air inlet (1) is trumpet-shaped, which is used for guiding air flow.

6. A rotating combined gradient sand trap according to claim 2, wherein: The outer wall of the sand collecting bin (106) is spherical, which is used for multidirectional adjustment inside the supporting sleeve (101), the outer wall of the guide block (111) slides along the groove wall of the limiting groove (110), the limiting groove (110) limits the sand collecting bin (106) through the guide block (111), and the sliding groove (203) is a groove of the inclined surface of the outer wall of the center rod (201), which is used for guiding the counterweight block two (306).

7. A rotating combined gradient sand trap according to claim 3, wherein: The counterweight block two (306) has elastic reset expansion, which is used for supporting the scraper one (307), and the counterweight block two (306) slides along the groove wall of the sliding groove (203) through centrifugal force.

8. A rotating combined gradient sand trap according to claim 4, characterized in that: The outer wall of the scraper two (401) is in contact with the inner wall of the sand filtering bin (107), which is used for scraping the attachments on the inner wall of the sand filtering bin (107), and the deslagging groove (404) is in communication with the inside of the scraper two (401), which is used for guiding and deslagging the attachments cleaned by the cleaning wheel (403).

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